Hermetically-sealed container and closure construction

A molded plastic container for cosmetics, and a molded plastic, press-fit sealing closure therefor, comprising in combination:

• a) a container body part having a storage space that opens to an access opening which is commensurate in size with the span of said space, said body part having a continuous thin peripheral wall surrounding said access opening and said wall having a peripherally extending continuous sealing edge portion located on one surface thereof, said sealing edge portion being integral and coextensive with said wall,
• b) said sealing edge portion comprising a sharp apex,
• c) a closure part having a wedge sealing means in the form of a resilient skirt portion comprising an inner surface adapted to mate in spaced relation with one surface of the continuous peripheral wall of the container body part, said inner surface at most points being spaced from and oblique with respect to the thin peripheral wall of the body part and being adapted at other points to engage with a wedging action and with a continuous line contact, the apex of the said sealing edge portion, and
• d) coengaging wedging detent means on said container and closure parts, said wedging and detent means holding said resilient skirt portion of the closure part forcibly against the said apex of the sealing edge portion of the container body part as the closure part is advanced against the apex of the sealing portion of the container body part with a press fit, to close the body part and slidably wedge the skirt portion of the closure part against the said apex of the sealing edge portion,
• e) said coengaging wedging detent means being opposed by the forcible engagement of the resilient skirt portion with the said apex of the sealing edge portion,
• f) said coengaging wedging detent means having cooperable continuous friction surfaces which are forced past each other during the said engagement of the apex,
• g) one of said friction surfaces being resilient and deformable.

A sealable container construction and closure therefor, comprising in combination:

• a) a container body part and a closure cap part,
• b) one of said parts having a peripheral groove with oppositely facing resilient wall portions,
• c) one of said wall portions comprising a projecting bead forming an undercut configuration,
• d) the other of said wall portions comprising a stepped shoulder presenting substantially a 90 degree, sharp corner configuration,
• e) the other of said parts comprising a resilient skirt portion having at one side, a projecting bead forming an undercut configuration, said projecting bead of the said one wall portion being receivable in the undercut configuration of the skirt portion of the other of said parts, so as to engage the undercut configuration and thereby retain the parts in assembled relation by means of a snap fit,
• f) said skirt portion having at its other side, a frusto-conical surface, said frusto-conical surface having an upper portion and a lower portion,
• g) said stepped shoulder being urged into forcible, intimate engagement with the frusto-conical surface of said skirt portion by the resilient engagement of the projecting bead of said one wall portion and the undercut configuration, said intimate engagement occurring at substantially continuous linear contact located midway between the upper portion and the lower portion of said frusto-conical surface, so as to form a concentrated line of sealing contact at said stepped shoulder and said frusto-conical surface.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said body part, said wall having a peripherally extending continuous sealing ledge which projects from its surface and which is coextensive with the wall,
• b) said sealing ledge having a sharp apex portion which separates it into divergently-facing surfaces,
• c) a cover part having a resilient skirt portion provided with a conical inner surface adapted to wedge and mate with the peripheral wall of the container part and engage the said sealing ledge thereof, and
• d) coengaging means on said container and cover parts, forcing said sealing ledge partially into said resilient skirt portion of the cover part as the latter is advanced against the container part to close the same and slidably wedge the skirt portion of the closure part against the said apex portion of the sealing ledge.

A sealable container construction and closure therefor, comprising in combination:

• a) a container body part and a closure cap part,
• b) one of said parts having a peripheral groove with oppositely facing resilient wall portions,
• c) one of said wall portions comprising a stepped shoulder presenting substantially a sharp, 90 degree apex,
• d) the other of said parts comprising a resilient skirt portion having an inner surface of substantially frusto-conical configuration,
• e) said sharp, 90 degree apex being urged into forcible engagement with the frusto-conical surface of said skirt portion by the resilient engagement of the skirt portion with the other of the oppositely facing resilient groove wall portions, said forcible engagement occurring at substantially continuous linear contact located midway between the upper portion and the lower portion of said frusto-conical surface, so as to form an air-tight seal between said apex and said frusto-conical surface.

A container and sealing closure construction comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous edge sealing portion which is coextensive with the remainder of the wall,
• b) a closure part having wedge sealing means comprising a peripherally extending sealing portion adapted to mate in spaced relation with said peripherally extending edge sealing portion of the container part, said peripherally extending sealing portion being disposed obliquely with respect to the said edge sealing portion,
• c) said edge sealing portion comprising a sharp apex forming an acute included angle,
• d) said peripherally extending sealing portion being adapted to engage said apex of said edge sealing portion, and
• e) coengaging means on said container and closure parts forcing said sealing portions of the said two parts forcibly toward each other to bring said apex into sealing engagement with said peripherally extending sealing portion as the closure part is forced on the container body part to close the same.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion, and
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said coengaging means comprising a portion of the peripheral wall of the container body part, spaced outwardly from another portion of the peripheral wall thereof,
• f) said resilient skirt portion occupying the space between the said peripheral wall portions,
• g) said closure part having an outer depending skirt, surrounding and spaced from the said resilient skirt portion thereof.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion,
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said container body part and said closure part being hingedly connected together and comprising a cosmetic compact.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion,
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said container body part comprising a cosmetic compact base portion and a product-receiving cup telescopically received therein,
• f) said closure part comprising a cosmetic compact cover,
• g) said product-receiving cup having said sharp apex, and said closure part having said resilient skirt portion.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion,
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said container body part comprising a cosmetic compact base portion,
• f) said closure part comprising a cosmetic compact cover having a peripheral annular component and a central viewing lens component secured thereto,
• g) said resilient skirt portion being disposed on solely said lens component.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion,
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said container body part comprising a cosmetic compact base portion, and
• f) said closure part comprising a cosmetic compact cover,
• g) said base portion and cover utilizing a hinge, and said base portion and cover being molded integrally with one another.

A container and sealing closure therefor comprising, in combination:

• a) a container body part having an access opening and a continuous peripheral wall surrounding said access opening, said wall having a peripherally extending continuous sealing edge portion which is coextensive with the remainder of the wall,
• b) said sealing edge portion comprising a sharp apex forming an included angle of substantially 90 degrees,
• c) a closure part having a resilient skirt portion with an inner surface adapted to mate in spaced relation with the peripheral wall of the container part, said inner surface extending obliquely with respect to the peripheral wall of the body part and being adapted to engage the apex of the said sealing edge portion,
• d) coengaging means on said container and closure parts, holding said resilient skirt portion of the closure part forcibly against said apex as the closure part is advanced against the container body part to close the same,
• e) said container body part comprising a cosmetic compact base portion, and
• f) said closure part comprising a cosmetic compact cover,
• g) said base portion and cover being connected by a mechanical hinge, for enabling pivotal movement with respect to one another.